Pixel arrangement structure and display panel

The invention provides a pixel arrangement structure and a display panel, the pixel arrangement structure comprises a plurality of pixel groups, and each pixel group comprises a first sub-pixel, a second sub-pixel and a third sub-pixel; the first sub-pixel and the second sub-pixel are adjacently arranged along a first direction and form a first recess along a second direction; wherein the first direction and the second direction intersect with each other, the first sub-pixel comprises a first edge and a second edge which are connected with each other, the second sub-pixel comprises a third edge and a fourth edge which are connected with each other, and the first edge and the third edge are adjacent and extend in the second direction. The first recess is formed between the second edge and the fourth edge; at least part of the third sub-pixels are located in the first recesses, and the third sub-pixels are provided with pixel edges extending in the first direction. Through the design mode, the display effect of